A feature in the Tom Stickney article is his association of shifts with different models and there are some interesting observations. For example, he writes "Use the double shift if you have good flexibility." Mr. Kelley indirectly address flexibility in 10-13 but there it affects the steepness of the preselected downstroke clubshaft plane and is understood by the rationale of 7-13. In 7-13 rationale is given for a "single plane downstroke" but he is less specific for the backstroke.
Hybrid Mode
